16545773054436 has 96 divisors (see below), whose sum is σ = 41095647871488. Its totient is φ = 5163229163520.

The previous prime is 16545773054431. The next prime is 16545773054507. The reversal of 16545773054436 is 63445037754561.

It is a self number, because there is not a number n which added to its sum of digits gives 16545773054436.

It is not an unprimeable number, because it can be changed into a prime (16545773054431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33644976 + ... + 34133208.

It is an arithmetic number, because the mean of its divisors is an integer number (428079665328).

Almost surely, 2^{16545773054436} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16545773054436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20547823935744).

16545773054436 is an abundant number, since it is smaller than the sum of its proper divisors (24549874817052).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16545773054436 is a wasteful number, since it uses less digits than its factorization.

16545773054436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489141 (or 489139 counting only the distinct ones).

The product of its (nonzero) digits is 127008000, while the sum is 60.

The spelling of 16545773054436 in words is "sixteen trillion, five hundred forty-five billion, seven hundred seventy-three million, fifty-four thousand, four hundred thirty-six".